Welcome To the Hoffman Amplifiers Forum
April 28, 2026, 04:02:30 pm
Welcome To the Hoffman Amplifiers ForumApril 28, 2026, 04:02:30 pm | ||
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Screen resistor values?
Started by firemedic |
5 Replies
5780 Views |
March 11, 2011, 06:53:40 pmby firemedic |
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New Project Ideas?
Started by ncusack |
4 Replies
4235 Views |
March 11, 2011, 02:55:56 pm by phsyconoodler |
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Bill of Materials / parts lists
Started by simonallaway |
17 Replies
8479 Views |
March 11, 2011, 12:45:50 pm by ckilgore |
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Junk Bin Tube Amp.
Started by DummyLoad |
10 Replies
6200 Views |
March 11, 2011, 12:06:03 pm by jojokeo |
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AA165 circuit in a 5F6A chassis?
Started by Madison |
4 Replies
3908 Views |
March 11, 2011, 11:35:20 am by phsyconoodler |
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Anyone try polystyrene caps?
Started by dwp |
13 Replies
10293 Views |
March 11, 2011, 11:19:51 am by jojokeo |
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Vibrolux and twin reverb
Started by guitarhvac |
6 Replies
5005 Views |
March 11, 2011, 07:15:46 am by guitarhvac |
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23 Replies
18358 Views |
March 11, 2011, 04:52:30 am by HotBluePlates |
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3 Replies
5922 Views |
March 11, 2011, 01:06:44 am by navdave |
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33 Replies
17489 Views |
March 10, 2011, 08:22:23 pm by Tone Junkie |
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Cathode Bias AB763?
Started by duke of earl |
7 Replies
7068 Views |
March 10, 2011, 06:20:40 pm by chocopower |
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P600D Diodes
Started by plexi50 |
6 Replies
5415 Views |
March 10, 2011, 03:58:23 pm by plexi50 |
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Fun weekend project - Tiny Giant
Started by jojokeo |
22 Replies
14396 Views |
March 10, 2011, 02:03:54 pm by kagliostro |
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High voltages in Traynor Bassmaster
Started by Cups |
6 Replies
5224 Views |
March 10, 2011, 01:45:19 pm by Cups |
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19 Replies
14313 Views |
March 10, 2011, 11:16:06 am by jjasilli |
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pots and input jack pictures question
Started by bakerlite |
10 Replies
7168 Views |
March 10, 2011, 07:25:42 am by sluckey |
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EL34 plate voltage
Started by Tone Junkie |
5 Replies
6630 Views |
March 09, 2011, 10:32:46 pm by Tone Junkie |
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Need Peavey Classic 75 schematic
Started by markmalin |
2 Replies
4502 Views |
March 09, 2011, 09:26:36 pm by markmalin |
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TOS Layout for review
Started by SLW |
7 Replies
5268 Views |
March 09, 2011, 07:09:55 am by kagliostro |
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What PI is this ?
Started by Mats |
5 Replies
3850 Views |
March 09, 2011, 01:25:42 am by Mats |
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2 Replies
3733 Views |
March 08, 2011, 09:53:12 pm by Platefire |
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To choke or not to choke
Started by duke of earl |
13 Replies
23742 Views |
March 08, 2011, 08:18:12 pm by duke of earl |
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Strange noise in Sunn amp
Started by SoundmasterG |
11 Replies
6986 Views |
March 08, 2011, 06:36:14 pm by SoundmasterG |
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Marshall 18 Watt Lite
Started by sluckey |
13 Replies
7068 Views |
March 08, 2011, 06:19:18 pm by RicharD |
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A yellow Deluxe gets done
Started by LooseChange |
17 Replies
6947 Views |
March 08, 2011, 05:31:25 pm by HoodratShinobi88 |
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cathode bias question
Started by blues man |
5 Replies
5218 Views |
March 08, 2011, 03:30:53 pm by jojokeo |
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JJ EL84s
Started by tubesornothing |
5 Replies
5277 Views |
March 08, 2011, 02:29:06 pm by jeff |
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help identifying mystery amp
Started by elmore_lewis |
14 Replies
6066 Views |
March 08, 2011, 12:08:25 pm by elmore_lewis |
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Problem with vibrolux bias
Started by guitarhvac |
8 Replies
6279 Views |
March 08, 2011, 11:37:52 am by sluckey |
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29 Replies
11968 Views |
March 07, 2011, 05:31:47 pm by bakerlite |
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LongTail Pair Phase Inverter
Started by Jack1962 |
3 Replies
4000 Views |
March 07, 2011, 01:23:13 pm by Jack1962 |
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18 Watt Lite iib phasing issue help?
Started by ncusack |
1 Replies
4545 Views |
March 07, 2011, 08:25:40 am by OldHouseScott |
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cathode biased Princeton Reverb trem ?
Started by worth |
13 Replies
9381 Views |
March 07, 2011, 07:58:52 am by Fresh_Start |
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IEC Receptical cut in chassis Question
Started by Platefire |
24 Replies
13353 Views |
March 07, 2011, 07:43:50 am by Fresh_Start |
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24 Replies
10390 Views |
March 06, 2011, 11:32:18 pm by coreythompsonhm |
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Simple tonestack question
Started by firemedic |
26 Replies
10890 Views |
March 06, 2011, 10:42:27 pm by firemedic |
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7 Replies
6942 Views |
March 06, 2011, 05:59:19 pm by silverface |
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Bias Vary Trem, Cathode Biased Amp
Started by Boots Deville |
6 Replies
7962 Views |
March 06, 2011, 05:12:29 pm by Boots Deville |
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Screen resistor values
Started by firemedic |
9 Replies
14240 Views |
March 05, 2011, 11:45:23 pm by PRR |
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12v Heaters - 6V6's in series?
Started by LooseChange |
5 Replies
5329 Views |
March 05, 2011, 11:21:30 pm by PRR |
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How to troubleshoot an amp before buying
Started by samato |
19 Replies
8149 Views |
March 05, 2011, 08:45:15 pm by rafe |
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5F6-a Build Help
Started by Bassman720 |
3 Replies
4268 Views |
March 05, 2011, 01:34:50 am by bluesbear |
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Airline Reverb Unit schematic??
Started by LooseChange |
8 Replies
6212 Views |
March 04, 2011, 11:23:04 pm by PRR |
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48 Replies
22238 Views |
March 04, 2011, 10:40:19 pm by Ritchie200 |
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OT for 6aq5
Started by Tone Junkie |
2 Replies
3088 Views |
March 04, 2011, 07:25:03 pm by Tone Junkie |
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Twin Reverb bias balance to bias adjust questions
Started by chuggy |
3 Replies
4392 Views |
March 03, 2011, 10:57:48 pm by sluckey |
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2 Replies
4982 Views |
March 03, 2011, 10:46:17 pm by tubeswell |
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AB763 Tremolo question
Started by G._Hoffman |
2 Replies
3221 Views |
March 03, 2011, 10:41:10 pm by G._Hoffman |
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AC30 + (one tube) REVERB
Started by bakerlite |
11 Replies
7639 Views |
March 03, 2011, 06:11:56 pm by tubenit |
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AB763 in a box?
Started by Searing |
6 Replies
4958 Views |
March 03, 2011, 01:11:45 pm by thermion |
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